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EFFECTIVENESS OF SELECTION OF WHEAT TO MODERN REQUIREMENTS FOR SUSTAINABLE DEVELOPMENT OF AGRICULTURE ІI. ENERGY EFFICIENCY OF FERTILIZATION

New Knowledge Journal of Science

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Title EFFECTIVENESS OF SELECTION OF WHEAT TO MODERN REQUIREMENTS FOR SUSTAINABLE DEVELOPMENT OF AGRICULTURE ІI. ENERGY EFFICIENCY OF FERTILIZATION
 
Creator Vasileva, Elisaveta; University of agribusiness and rural development
Ur, Zlatina; Konstantin Malkov Institute of pland genetic resources
 
Description Aim of the study was to conclude on adaptation of modern varieties to the requirements of sustainable agriculture and hence the effectiveness of their methods of selection with respect to these requirements. The comparison between genotypes in two directions - by the selection methods by which they were established and according to the time of their creation. Tested a total of 11 genotypes were created between 1972 and 2008. The results show a more efficient absorption of nutrients from the soil in the newer varieties. Despite these results, the profitability of production remained at the same level over the years (an average of the profitability ratio ~ 1.6). Economic profitability is not correlated with the efficiency of fertilization but depends on the gross energy yield of grain yield (which is a composite indicator), and increased with increasing nitrogen fertilizer rate to 18 kg/da a.s. Most stable values of the coefficient of profitability were detected in the same species, provided that the gross energy yield of grain varies relatively the least element of agrotechnics – „Sadovo 1“, „Boryana“, „Geya 1“.
 
Publisher University of agribusiness and rural development - Plovdiv
 
Contributor —
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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Format application/pdf
 
Identifier http://science.uard.bg/index.php/newknowledge/article/view/4
 
Source New knowledge Journal of science; Vol 3, No 1 (2014): New knowledge Journal of Science
2367-4598
1314-5703
 
Language eng
 
Relation http://science.uard.bg/index.php/newknowledge/article/view/4/3